One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,7)(3,4,8,5)(17,18,21,22)(19,20,23,24)(1,3)(2,5)(4,7)(6,8)(9,10)(11,16)(12,14)(13,15)(18,22)(19,23) involution — undirected(1,4,6,5)(2,3,7,8)(9,11)(10,12)(13,14)(15,16)(17,19)(18,20)(21,23)(22,24)(2,7)(4,5)(11,14)(12,16)(17,20)(18,19)(21,24)(22,23) involution — undirected(1,5,6,4)(2,3,7,8)(9,12,13,16)(10,14,15,11)(1,3)(2,5)(4,7)(6,8)(9,10)(11,12)(13,15)(14,16) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.